Ok so, this is my first fanfic ever. Not very good writing but the plot's been stuck in my head for a while and now my exams are over I thought I should just get it out of my system.

It starts at the beginning of the Pilot, and it is a sister-fic, which I usually hate, but in this fanfic the sister isn't the focus of this story it's really a Sam-centic fic. Background you may wanna know = Claire (sister) is the middle child (1year younger than Dean and 3years older than Sam). She's a lot like Dean personality wise, but has a softer side and isn't too scared of a chic-flick moment.

I've taken some artistic licence with a few details, eg. Sam's been at Stanford for 4years at this point (not 2 or whatever it is in the show), he lives in a house (not an apartment) etc. it's all little details that will contribute to the plot, but I suppose you'll see a little later; I've stalled too much already :S

Disclaimer: don't own, never will etc. etc.

A crash had awoken him, his eyes snapping open to reveal the darkness of the early hours of the morning. He looked to his left to see his girlfriend fast asleep, before the sound of whispered voices snapped him back into attention.

Instantly awake thanks to years of training, he made his way down the stairs of his house, flattening himself against the wall so as to get a better look at the shadows of two intruders in the next room. While the smaller was searching through items on his coffee table, the bigger of the two was moving towards the stairs. Sam took his chance. Adrenaline pumping he tackled the bigger one, but he started fighting back and soon the smaller one had joined in as well. He held his own for only a few more minutes before he started to tire. He felt a small flutter of panic at the thought of his loved ones asleep upstairs as he realised he was being overpowered...

"Easy tiger" damn he was pinned. Wait, he knew that voice:

"Dean?" the smirk on his big brothers' face right now was all too familiar, "you scared the crap out of me"

"well that's because you're out of practise" Sam's anger got the better of him, and the tangle of bodies started to roll as Sam managed to pin Dean with his elbow and the other intruder with his knee. Sam briefly heard a "Or Not" from the direction of his elbow, while the body under his knee started bucking to get out of the hold and his mind slowly put two and two together: if this was Dean, then the other intruder must be…

"Claire?"

"Nice to see you too Sam, now get off me!" The sound of his big sisters voice made him cringe slightly in an apology as he let her go.

"What the hell are you two doing here?" Sam asked, helping the siblings he hadn't seen in four years to their feet.

"Well I was looking for a beer"

Claire chipped in "And I could use a toilet break" her smirk truly was one to rival Deans.

"What the hell are you doing here?"

Dean got down to business, "We need to talk" Sam and Dean unconsciously squared up against each other, and Claire rolled her eyes at the familiar pose from the late years before Sam left for Stanford.

"Sam, bathroom? Seriously…" Claire tried to get his attention, but was ignored by Sam's reply to Dean.

"Err, the phone?"

"If I'd called would you have picked up?"

Claire had had enough, "Sam! Bathroom?"

Sam dragged his attention from Dean to face his sister, "Oh, up the stairs, to your left" he sighed, "And please be quiet, this may be news to you but some people actually choose to sleep at 1o'clock in the morning".

"Alright, alright, I got it. Indoor voices only" Claire replied with a grin before heading upstairs, thankful to be getting away from that brotherly-yet-oh-so-annoying-alpha-male-control-contest.

While walking up the stairs in the dark, her keen eyes spotted the pictures lining the walls: Sam and a pretty blonde woman were in almost every picture, with many including other 20-something men and women all smiling like they'd just stepped out of a Hallmark commercial. Well, Sam wanted normal: he seemed to have gotten it. From the look of these pictures, he was just your average Joe college student. Claire faltered a little when she realised that this fact actually made her sad. It seemed she didn't know her baby brother anymore.

Halfway up the stairs she spotted the pretty blonde woman from the pictures peeking over the banister. Sammy's got a girlfriend? Claire watched, as blondie started towards the stairs before jumping and clutching her chest in shock as she nearly spotted Claire.

Claire winced at frightening the other girl, "Sorry if I scared you, just on my way to the bathroom"

"Oh, well err," She was still clutching her chest like it could fall off, but she seemed to be calming down much to Claire's relief, "sorry but who are you?"

"I'm Claire. Sam's…"

"…sister. Oh, of course, I've heard a lot about you." Jessica said with a smile. Her first meeting with anyone from Sam's family was unexpected to say the least, but she couldn't deny she was more than a little curious. She could see the resemblance between Sam and his sister. They shared the same eyes. And height genes. It was weird to put a face to the name. Although Sam didn't talk about his family often, when he did it was almost always related to Claire, his brother Dean or both. Jess felt a little overwhelmed. That and the fact that it was 2o'clock in the morning resulted in it being a few minutes before Jess realised that she'd been staring.

"Oh I'm sorry, it's just I haven't ever met anyone from Sam's family before and…" turning red in embarrassment, but still not looking away.

"It's fine seriously. I mean I did just break into your house with my brother and nearly gave you a heart attack on the stairs, so a little post-shock staring? Not a problem" Claire gave the girl a smile and a once over. She seemed nice enough, and pretty, and Sam seemed to trust her enough to live with her… "So what's your name?"

"Oh sorry, I'm rude. My name's Jessica. Did you say you broke in with your brother? Dean's here?"

"Oh yeah, he's downstairs with Sam now. Why don't you go say hello?"

"Oh well, I don't want to interrupt…"

"They won't mind, and anyway they'll need someone to referee and I'm not down there so it might as well be you."

"Aright then. Bathroom's to the left by the way"

"Thanks" Claire waited as Jess headed down the stairs. She stayed on the landing just until she heard the sound of a light flicking on and Jessica's voice, before moving away. Now was her time to look around a little.

Turning to the right, she opened the first door to find what she assumed was Sam and Jessica's bedroom. It was nice enough: a bed, wardrobes, books, more books, books everywhere. Yep, Sammy's bedroom alright. Claire was touched to find a picture of their parents on the nightstand, and one of Dean and herself with the Impala on the dresser. Not seeing anything else worth snooping for, she turned to head out the room when she was startled by a small figure silhouetted in the doorway, and let out a gasp of shock. It was only then that she noticed that the figure was a little girl, no older than four years old, and that this little girl was looking at Claire in something akin to fear. Claire approached the girl slowly and knelt down in front of her.

"Hey there" she said softly, "what's your name?"

The girl simply stared at her, more out of curiosity than fear now, but she still stayed silent. Claire tried a different approach.

"What are you doing here? Are you Jessica's sister?" no response, "Her niece or something?"

Again her questions were met with silence. Maybe this kid was involved in one of Sam's weird school projects. Like the time in high school when he followed Dean around for a week, jotting down every single move he made in order to 'better understand the science of the human brain'. Or something like that anyway. Sam always had gone above and beyond when it came to school, but even so, bringing a child home with you? That was a little far-fetched, even for Sammy. Unless…

"Hey are you like the upgrade of those eggs we had to look after for a week in high school?"

Silence. The kid cocked her head to one side, as if trying to figure Claire out. It was exactly how Sam used to look when he was about her age and he…. Oh no. Claire's mouth dropped open and she let out a little gasp as she realised the truth, of which was staring her in the face the whole time. Literally. This little girl was so obviously Sam's. Her eyes, and her nose... Claire unconsciously reached out to touch the girl's face, but this didn't sit well with the kid, who started to cry. Very loudly. Claire cringed, making shushing noises and what she hoped were comforting hand gestures or anything to stop this girl crying. Thuds could be heard coming up the stairs…

~SN~SN~SN~SN~

Downstairs

Dean stopped in his ranting as the light flicked on, revealing a hot blonde in a very small smurf shirt. Damn Sammy got lucky with this one.

"Jess, hey" Dean noticed Sam looked a little uncomfortable at introducing two separate parts of his family, "Dean this is my girlfriend Jessica"

"Your brother Dean right?" Jess looked to Sam for confirmation, but Dean cut in.

"I love the Smurfs" he gave Jess a wink as he continued to piss his brother off (well that's what big brothers are for right?), "You know I gotta tell ya, you are completely out of my brothers' league".

"Just let me go and put something on" Silently pleased in the girl's loyalty to his little brother, but wanting to push Sam's buttons for one more minute, he answered while checking her out very obviously, "No I wouldn't dream of it. Seriously."

And it worked, as Sam let off a huff of annoyance that only years spent with him as a little brother would pick up on. Dean inwardly smiled: Sam hadn't changed a bit. Having finished annoying his little bro now, he decided a subject change was in order "Did you meet Claire? She was on her way to the bathroom".

"Oh yeah, she nearly gave me a heart attack but saved me from falling down the stairs to my death so she has my approval"

Dean smiled at that, and turned to Sam to see he also had a, albeit slightly bemused, smile on his face also. Dean opened his mouth to get down to business, but the words caught in his throat as he saw the smile slip from Sam's face before he was suddenly gone, running up the stairs as if something was on fire. It was only then that Dean noticed the cries. And not long after that, he and Jessica were stumbling up the stairs to find… a little girl sobbing her heart out on the hallway floor, and a bewildered Claire kneeling next to her.

Dean seemed paralysed with shock, unable to move as he processed what was going on.

"Dad-dy" the girl sobbed, her arms pointed upwards in an indication that she wanted to be picked up. Sam obliged by hoisting her onto his hip and rocking her gently as she laid her head on his shoulder. It was then that he turned to Claire.

"What happened?" he asked.

Ignoring his question, she burst straight in with her own "She's yours?"

"What?!?" Dean's voice could be heard behind them, just snapping out of his paralysis, "You had a kid?"

Sam sighed and cast an apologetic look to Jessica, who was standing close to Dean, silently observing the siblings' reactions. "Do you want me to take her?" Jess asked, but was met with a muffled whimper from Sam's arms, the little girls' fists clenched tightly in his T-shirt.

"No it's fine lets just… can we go downstairs?" he faced Claire and Dean to ask, "to talk about all this?"

Claire and Dean shared a look, before Dean nodded, and the two headed downstairs.

Jess stayed back with Sam, giving him a concerned look, "How much are you going to tell them?"

Sam's eyes met her own, giving her his answer without words.

"Well are you sure you're ready to talk about all this?" she asked, her hand reaching out to clasp his own in a gesture of support.

Sam's determined face stared back at her, "Yes. It's time we talked." He said, before he headed downstairs, his daughter in his arms and his girlfriend following close behind. It was going to be a long night.